Change error when running out of ssh agent keys
diff --git a/src/transports/ssh.c b/src/transports/ssh.c
index 58f1aeb..5c8545f 100644
--- a/src/transports/ssh.c
+++ b/src/transports/ssh.c
@@ -293,8 +293,14 @@ static int ssh_agent_auth(LIBSSH2_SESSION *session, git_cred_ssh_key *c) {
if (rc < 0)
goto shutdown;
- if (rc == 1)
+ /* rc is set to 1 whenever the ssh agent ran out of keys to check.
+ * Set the error code to authentication failure rather than erroring
+ * out with an untranslatable error code.
+ */
+ if (rc == 1) {
+ rc = LIBSSH2_ERROR_AUTHENTICATION_FAILED;
goto shutdown;
+ }
rc = libssh2_agent_userauth(agent, c->username, curr);